Examples with EventHandler com.netflix.conductor.common.metadata.events.EventHandler used on opensource projects

Example 6 with EventHandler

use of com.netflix.conductor.common.metadata.events.EventHandler in project conductor by Netflix.

the class TestSimpleEventProcessor method testEventProcessorWithRetriableError.

@Test
public void testEventProcessorWithRetriableError() {
    EventHandler eventHandler = new EventHandler();
    eventHandler.setName(UUID.randomUUID().toString());
    eventHandler.setActive(true);
    eventHandler.setEvent(event);
    Action completeTaskAction = new Action();
    completeTaskAction.setAction(Type.complete_task);
    completeTaskAction.setComplete_task(new TaskDetails());
    completeTaskAction.getComplete_task().setTaskRefName("task_x");
    completeTaskAction.getComplete_task().setWorkflowId(UUID.randomUUID().toString());
    completeTaskAction.getComplete_task().setOutput(new HashMap<>());
    eventHandler.getActions().add(completeTaskAction);
    when(queue.rePublishIfNoAck()).thenReturn(false);
    when(metadataService.getAllEventHandlers()).thenReturn(Collections.singletonList(eventHandler));
    when(metadataService.getEventHandlersForEvent(event, true)).thenReturn(Collections.singletonList(eventHandler));
    when(executionService.addEventExecution(any())).thenReturn(true);
    when(actionProcessor.execute(any(), any(), any(), any())).thenThrow(new ApplicationException(ApplicationException.Code.BACKEND_ERROR, "some retriable error"));
    SimpleEventProcessor eventProcessor = new SimpleEventProcessor(executionService, metadataService, actionProcessor, eventQueues, jsonUtils, new TestConfiguration(), objectMapper);
    assertNotNull(eventProcessor.getQueues());
    assertEquals(1, eventProcessor.getQueues().size());
    Uninterruptibles.sleepUninterruptibly(1, TimeUnit.SECONDS);
    verify(queue, never()).ack(any());
    verify(queue, never()).publish(any());
}

Example 7 with EventHandler

use of com.netflix.conductor.common.metadata.events.EventHandler in project conductor by Netflix.

the class TestSimpleEventProcessor method testEventHandlerWithCondition.

@Test
public void testEventHandlerWithCondition() {
    EventHandler eventHandler = new EventHandler();
    eventHandler.setName("cms_intermediate_video_ingest_handler");
    eventHandler.setActive(true);
    eventHandler.setEvent("sqs:dev_cms_asset_ingest_queue");
    eventHandler.setCondition("$.Message.testKey1 == 'level1' && $.Message.metadata.testKey2 == 123456");
    Map<String, Object> startWorkflowInput = new LinkedHashMap<>();
    startWorkflowInput.put("param1", "${Message.metadata.testKey2}");
    startWorkflowInput.put("param2", "SQS-${MessageId}");
    Action startWorkflowAction = new Action();
    startWorkflowAction.setAction(Type.start_workflow);
    startWorkflowAction.setStart_workflow(new StartWorkflow());
    startWorkflowAction.getStart_workflow().setName("cms_artwork_automation");
    startWorkflowAction.getStart_workflow().setVersion(1);
    startWorkflowAction.getStart_workflow().setInput(startWorkflowInput);
    startWorkflowAction.setExpandInlineJSON(true);
    eventHandler.getActions().add(startWorkflowAction);
    eventHandler.setEvent(event);
    when(metadataService.getAllEventHandlers()).thenReturn(Collections.singletonList(eventHandler));
    when(metadataService.getEventHandlersForEvent(event, true)).thenReturn(Collections.singletonList(eventHandler));
    when(executionService.addEventExecution(any())).thenReturn(true);
    when(queue.rePublishIfNoAck()).thenReturn(false);
    String id = UUID.randomUUID().toString();
    AtomicBoolean started = new AtomicBoolean(false);
    doAnswer((Answer<String>) invocation -> {
        started.set(true);
        return id;
    }).when(workflowExecutor).startWorkflow(eq(startWorkflowAction.getStart_workflow().getName()), eq(startWorkflowAction.getStart_workflow().getVersion()), eq(startWorkflowAction.getStart_workflow().getCorrelationId()), anyMap(), eq(null), eq(event), eq(null));
    WorkflowDef workflowDef = new WorkflowDef();
    workflowDef.setName(startWorkflowAction.getStart_workflow().getName());
    when(metadataService.getWorkflowDef(any(), any())).thenReturn(workflowDef);
    SimpleActionProcessor actionProcessor = new SimpleActionProcessor(workflowExecutor, parametersUtils, jsonUtils);
    SimpleEventProcessor eventProcessor = new SimpleEventProcessor(executionService, metadataService, actionProcessor, eventQueues, jsonUtils, new TestConfiguration(), objectMapper);
    assertNotNull(eventProcessor.getQueues());
    assertEquals(1, eventProcessor.getQueues().size());
    Uninterruptibles.sleepUninterruptibly(1, TimeUnit.SECONDS);
    assertTrue(started.get());
}

Example 8 with EventHandler

use of com.netflix.conductor.common.metadata.events.EventHandler in project conductor by Netflix.

the class SimpleEventProcessor method executeEvent.

/**
 * Executes all the actions configured on all the event handlers triggered by the {@link Message} on the queue
 * If any of the actions on an event handler fails due to a transient failure, the execution is not persisted such that it can be retried
 *
 * @return a list of {@link EventExecution} that failed due to transient failures.
 */
protected List<EventExecution> executeEvent(String event, Message msg) throws Exception {
    List<EventHandler> eventHandlerList = metadataService.getEventHandlersForEvent(event, true);
    Object payloadObject = getPayloadObject(msg.getPayload());
    List<EventExecution> transientFailures = new ArrayList<>();
    for (EventHandler eventHandler : eventHandlerList) {
        String condition = eventHandler.getCondition();
        if (StringUtils.isNotEmpty(condition)) {
            logger.debug("Checking condition: {} for event: {}", condition, event);
            Boolean success = ScriptEvaluator.evalBool(condition, jsonUtils.expand(payloadObject));
            if (!success) {
                String id = msg.getId() + "_" + 0;
                EventExecution eventExecution = new EventExecution(id, msg.getId());
                eventExecution.setCreated(System.currentTimeMillis());
                eventExecution.setEvent(eventHandler.getEvent());
                eventExecution.setName(eventHandler.getName());
                eventExecution.setStatus(Status.SKIPPED);
                eventExecution.getOutput().put("msg", msg.getPayload());
                eventExecution.getOutput().put("condition", condition);
                executionService.addEventExecution(eventExecution);
                logger.debug("Condition: {} not successful for event: {} with payload: {}", condition, eventHandler.getEvent(), msg.getPayload());
                continue;
            }
        }
        CompletableFuture<List<EventExecution>> future = executeActionsForEventHandler(eventHandler, msg);
        future.whenComplete((result, error) -> result.forEach(eventExecution -> {
            if (error != null || eventExecution.getStatus() == Status.IN_PROGRESS) {
                transientFailures.add(eventExecution);
            } else {
                executionService.updateEventExecution(eventExecution);
            }
        })).get();
    }
    return processTransientFailures(transientFailures);
}

Example 9 with EventHandler

use of com.netflix.conductor.common.metadata.events.EventHandler in project conductor by Netflix.

the class MetadataServiceTest method testValidateEventNoEvent.

@Test(expected = ConstraintViolationException.class)
public void testValidateEventNoEvent() {
    try {
        EventHandler eventHandler = new EventHandler();
        metadataService.addEventHandler(eventHandler);
    } catch (ConstraintViolationException ex) {
        assertEquals(3, ex.getConstraintViolations().size());
        Set<String> messages = getConstraintViolationMessages(ex.getConstraintViolations());
        assertTrue(messages.contains("Missing event handler name"));
        assertTrue(messages.contains("Missing event location"));
        assertTrue(messages.contains("No actions specified. Please specify at-least one action"));
        throw ex;
    }
    fail("metadataService.addEventHandler did not throw ConstraintViolationException !");
}

Example 10 with EventHandler

use of com.netflix.conductor.common.metadata.events.EventHandler in project conductor by Netflix.

the class MySQLMetadataDAO method updateEventHandler.

@Override
public void updateEventHandler(EventHandler eventHandler) {
    Preconditions.checkNotNull(eventHandler.getName(), "EventHandler name cannot be null");
    // @formatter:off
    final String UPDATE_EVENT_HANDLER_QUERY = "UPDATE meta_event_handler SET " + "event = ?, active = ?, json_data = ?, " + "modified_on = CURRENT_TIMESTAMP WHERE name = ?";
    // @formatter:on
    withTransaction(tx -> {
        EventHandler existing = getEventHandler(tx, eventHandler.getName());
        if (existing == null) {
            throw new ApplicationException(ApplicationException.Code.NOT_FOUND, "EventHandler with name " + eventHandler.getName() + " not found!");
        }
        execute(tx, UPDATE_EVENT_HANDLER_QUERY, q -> q.addParameter(eventHandler.getEvent()).addParameter(eventHandler.isActive()).addJsonParameter(eventHandler).addParameter(eventHandler.getName()).executeUpdate());
    });
}